Bettis Manual: 4"" ANSI 600 Multiport Flow Selector Valve With High Differential Pressure Seal Service Manual | Bettis Manuals & Guides

Bettis Canada Ltd.
4112 91A Street
Edmonton, Alberta, Canada T6E 5V2
Tel: [phone]
Fax: [phone]

SERVICE MANUAL No. I-0160

4" CLASS 600

MULTIPORT SELECTOR VALVE

WITH HIGH DIFFERENTIAL PRESSURE SEAL

CUSTOMER:

P.O.#:

W.O.#:

TAG:

DATE:

Edmonton

APPLIES TO OPERATOR MODEL:

DESCRIPTION DWG.NO PAGE

I INTRODUCTION ........................................................... 2

II VALVE SPECIFICATIONS ................................................... 2

III VALVE ASSEMBLY ......................................................... 3

IV VALVE DISASSEMBLY ...................................................... 5

TYPICAL VALVE ASSEMBLY DRAWING ...................... AB0460 ......... 6

VALVE DETAIL DRAWING ................................. FIGURE 1 ....... 7

V ACTUATOR ASSEMBLY..................................................... 8

VI CAM ADJUSTING .......................................................... 10

SWITCHPAK ASSEMBLY DRAWING ......................... IB0048-08 ....... 12

ELECTRICAL ASSEMBLY DRAWING ......................... IB0163 .......... 13

VII VALVE INSTALLATION...................................................... 14

VIII VALVE MAINTENANCE ..................................................... 14

IX TROUBLESHOOTING....................................................... 15

TYPICAL WIRING DIAGRAM ................................ SB0704-X01 ...... 16

INJECTION SYSTEM DRAWING ............................. FIGURE 2 ....... 17

X NOTES ............................................................... 18

I-0160--.WPD/1

REV1: JUL-31-97

I INTRODUCTION

As many as eight flow-lines can be manifolded through one BETTIS Multiport Selector Valve.
The valve allows diversion of an individual flow-line to a test outlet for testing or sampling, while
combining the flow of the other flow-lines into a separate group outlet.

II VALVE SPECIFICATIONS

RATING SIZE ANSI 300RF CONNECTION WEIGHT

TRIM MAXIMUM

WORKING

PRESSURE

PSIG

STD. 740 38

HIGH

TEMP

TRIM MAXIMUM

STD. 1480 38

HIGH

TEMP

600 260

RATING SIZE ANSI 600RF CONNECTION WEIGHT

WORKING

PRESSURE

PSIG

600 260

WORKING

TEMP

bC

WORKING

TEMP

bC

Cv = 270 FOR TEST OUTLET FLOW

NPS EIGHT

FLOWLIN

E

INLET

PORTS

4x8 NPS 4 NPS 4 NPS 8 1275

NPS EIGHT

FLOWLIN

E

INLET

PORTS

4x8 NPS 4 NPS 4 NPS 8 1375

ONE

TEST

OUTLET

PORT

ONE

TEST

OUTLET

PORT

ONE

GROUP

OUTLET

PORT

ONE

GROUP

OUTLET

PORT

VALVE

lbs.

VALVE

lbs.

Cv = 660 FOR GROUP OUTLET FLOW

SHELL HYDROSTATIC TEST PRESSURE = 2220 PSIG (15300 kPa)

STANDARD TRIM
MAXIMUM DIFFERENTIAL: TEST - GROUP = 200 PSID (1380 kPa)

MAXIMUM DIFFERENTIAL: GROUP - TEST = 150 PSID (1030 kPa)

HIGH TEMPERATURE TRIM
MAXIMUM DIFFERENTIAL: TEST - GROUP = 300 PSID (2070 kPa)

MAXIMUM DIFFERENTIAL: GROUP - TEST = 250 PSID (1720 kPa)

INTERMITTENT SEAL EXPOSURE AT 285bC FOR 15 MINUTES WITH MAXIMUM BODY
PRESSURE OF 1100 PSIG AND MAXIMUM DIFFERENTIAL.

STATIC STATIONARY DIFFERENTIAL: TEST - GROUP 800 PSID FOR 15 MINUTES AT 40bC.

STATIC STATIONARY DIFFERENTIAL: GROUP - TEST 400 PSID FOR 15 MINUTES AT 40bC.

(I-0160--.wpd) 2

NOTE: In emergency situations only

static stationary differential pressure per specifications above. Do not operate the
motor operator at higher than the above maximum differential pressure because
damage may occur to motor operator.

ACTUATOR SPECIFICATIONS

Torque at maximum differential should be between 21 - 29 kgf-m (150 - 210 ft-lb)

Plug position tolerance: ± 2b

Actuator speed: 1.4 rpm

Actuator weight: 60 kg (130 lb)

Actuator position accuracy: ±1b

, the 4x8 Multiport Selector Valve seal can maintain

III VALVE ASSEMBLY

Refer to typical valve assembly drawing on page 6, and typical valve detail drawing on page 7.

Ensure all the parts are clean and in good condition before assembling the Multiport Selector
Valve. Use ESSO Valve Grease No. 1, or a suitable equivalent, to lubricate the components.

A. BODY: (110)

1. Visually inspect all internal and external surfaces and threads.

2. Lubricate and install the 25% C/PTFE bushing (120)

B. PLUG: (130)

1. Lubricate and install the lower plug o-ring (133), with the PTFE backup ring (136)
installed "above" the o-ring, toward the bonnet.

2. Lubricate and install the seal adjusting nut (138) by turning it clockwise (ie. viewing
toward the plug centerline) until solid. Follow with three seal wave springs (140). Ensure
the three seal wave springs are aligned on the seal adjusting nut.

NOTE: If the seal wave springs are not aligned, the plug seal may not hold rated

differential pressure.

3. Install the seal back-up plate (143) against the shoulder in the plug.

(I-0160--.wpd) 3

4. Lubricate and install the plug seal o-ring (149) on the stainless steel end of the seal
assembly (142). Lubricate and install the plug seal assembly, with the plug seal o-ring
properly positioned, into the plug.

NOTE: Press seal assembly into the plug using hand force only.

5. Install the single scraper wave spring (158), followed by the scraper (154), into the plug.

NOTE: Lubricate the spring and scraper so that they stay in place in the plug during

assembly. Ensure that the scraper fits freely into the plug. Check by pushing
into the plug using both hands, then letting go to see if the scraper returns to
its original position.

6. Lubricate and install the plug bushing (120) into the body.

7. Lower the plug vertically into the body, ensuring that the plug seal and scraper clear the
body bore. When installed, the plug rests on top of the bushing.

8. Install and grease the tapered bearing cone and rollers (160) onto the plug.

C. BONNET: (162)

1. Lubricate and install the bearing cup (160) into the bonnet.

2. Lubricate and install the PTFE backup ring (170), followed by the upper plug o-ring
(167), into bonnet bores' upper groove (ie. viewing from the bottom of the bonnet). Next,
lubricate and install the upper plug polypak (164), into the bonnet bores' lower groove.

NOTE: The PTFE backup ring is installed toward the bonnets' top surface, as

installed.

3. Lubricate and install the bonnet o-ring (173) into the bonnets' outer groove.

4. From the bonnets' top surface, lubricate and install the wiper (171) and grease fitting
(178).

NOTE: Pump grease through the grease fitting to fill the bearing bore.

5. Install the injection nipple (177), 90b elbow (175), nipple, ball valve (174) and vent plug
(176), ensuring that they are clean and well oiled.

6. Using two lifting eyes installed into the 1/2-13UNC jacking screw holes provided in the
bonnet, vertically lift and set the bonnet in place on the valve body with the seal injection
fittings over the group outlet. The bonnet stud holes must be aligned with the bodies
tapped stud holes.

NOTE: Ensure the bonnet is flat and lowered slowly onto the top of the valve body, in

order to prevent damaging the body o-ring and plug seals. Push the bonnet
down by hand only, or rubber mallet.

7. Install the sixteen bonnet studs (180). Use Jet-Lube Kopr-Kote anti-seize lubricant, or a
suitable equivalent.

(I-0160--.wpd) 4

8. Install the two lifting lugs (179) 90b from the group outlet.

NOTE: The required lifting lug position is 90b from the position shown in the typical

assembly drawing on page 6.

9. Tighten two of the sixteen bonnet nuts (182), at a 180b interval, then ensure that the
plug (130) rotates freely through a complete revolution.

10. Tighten the remaining nuts after confirming that the bonnet (162) and plug (130) have
been centred. Torque the nuts to 450 ft-lbs.

D. PLUG SEAL ADJUSTMENT (162):

1. Adjust the plug seal assembly (142), by aligning the plug (130) with an open (ie. home
test) port, then turning the adjusting nut (138) counter clockwise with adjusting tool (ie.
viewing toward the plug centerline) until the scraper just touches the inside wall surface.

2. Rotate the plug (130) at least one complete revolution to check for binding or excessive
turning torque then tighten the adjusting nut (138) counter clockwise, viewing towards
the plug centerline, with the supplied adjusting tool to 40 ft.lbs of torque.

NOTE: Do not over tighten the adjusting nut (138), as damage to the plug seal

assembly may result.

3. Turn the plug (130) at least one complete revolution while checking for smooth
movement. If the plug seal assembly (142) is binding at inlet ports when the plug is
rotated, the plug seal assembly (142) or the seal wave springs (140) are not in their
proper position(s). See disassembly procedure below, if required.

4. Install the two bonnet vent plugs (176).

5. Perform any required leakage test(s).

IV VALVE DISASSEMBLY

Refer to typical valve assembly drawing on page 6, and typical valve detail drawing on page 7.

1. Ensure that both the group and test pressures are zero before proceeding.

2. Open a home test port for access to the seat assembly. Turn the seal adjusting nut (138)
clockwise until solid (ie. viewing toward plug centerline), in order to release the spring load
from the plug seal assembly, and provide clearance for the scraper in the body.

3. Remove the sixteen bonnet nuts (182) and studs (180). Using two lifting eyes in the 1/2­13UNC jacking screw holes provided in the bonnet, lift the bonnet (162) vertically until it
clears the plug and body. Set the bonnet aside.

4. Remove the plug (130), complete with all seal components, from the valve body.

5. Disassemble the plug and plug seal, and inspect all components. Reassemble following
above Valve Assembly procedure.

(I-0160--.wpd) 5